Rajasthan Board Class 12 Question Paper 2019 Environmental Science

Zm_m§ H $ Roll No.

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Sl.No. :

No. of Questions – 30 SS–61–EVS
No. of Printed Pages – 07

Cƒ _mÜ`{_H$ narjm, 2019
SENIOR SECONDARY EXAMINATION, 2019

TEAR HERE TO OPEN THE QUESTION PAPER
n¶m©daU {dkmZ
ENVIRONMENTAL SCIENCE

àíZ nÌ H$mo ImobZo Ho$ {bE `hm± \$m‹S>|
g_` : 3¼ KÊQ>o
nyUmªH$ : 56

narjm{W© ` m| Ho $ {bE gm_mÝ` {ZX} e …
GENERAL INSTRUCTIONS TO THE EXAMINEES :
1) narjmWu gd©àW_ AnZo àíZ nÌ na Zm_m§H$ A{Zdm`©V… {bI| &
Candidate must write first his / her Roll No. on the question paper
compulsorily.
2) g^r àíZ H$aZm A{Zdm`© h¢ &
All the questions are compulsory.
3) àË`oH$ àíZ H$m CÎma Xr JB© CÎma-nwpñVH$m _| hr {bI| &
Write the answer to each question in the given answer-book only.
4) {OZ àíZmo§ ‘| AmÝV[aH$ IÊS> h¡§, CZ g^r Ho$ CÎma EH$ gmW hr {bI|&
For questions having more than one part the answers to those parts are to be
written together in continuity.
5) àíZ nÌ Ho$ {hÝXr d A§J«oOr ê$nmÝVa ‘| {H$gr àH$ma H$s Ìw{Q> / AÝVa / {damoYm^mg hmoZo na {hÝXr ^mfm
`hm± go H$m{Q>E

Ho$ àíZ H$mo ghr ‘mZ|&
If there is any error / difference / contradiction in Hindi & English versions of
the question paper, the question of Hindi version should be treated valid.

SS–61–EVS 1336 [ Turn Over

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6) > àíZ g§»¶m A§H$ à˶oH$ àíZ
1 - 13 1

14 - 24 2

25 - 27 3

28 - 30 4

Q. Nos. Marks per question

1 - 13 1

14 - 24 2

25 - 27 3

28 - 30 4

7) àíZ g§»¶m 28 go 30 ‘| AmÝV[aH$ {dH$ën h¡&
There are internal choices in Q.Nos. 28 to 30.

IÊS> - A
SECTION - A

1) àXÿfU H$mo n[a^m{fV H$s{O¶o& [1]
Define pollution.

2) dm¶w àXÿfH$m| Ho$ {d{^Þ ómoVm| Ho$ Zm‘ {b{I¶o? [1]
Write various sources of air pollutants.

SS–61–EVS 1336

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3) Üd{Z Vrd«Vm ‘mnZ H$s gm‘mݶ BH$mB© ³¶m h¡? [1]
What is the general unit of noise intensity measurement?

4) E.I.A. (B©.AmB©.E.) H$m nyam Zm‘ {b{I¶o& [1]
Write full name of E.I.A.

5) AZdrZH$aUr¶ g§gmYZm| Ho$ H$moB© Xmo CXmhaU {b{I¶o? [1]
Write any two examples of non-renewable resources.

6) ""h[aV ~¡qH$J'' eãX go ³¶m VmËn¶© h¡? [1]
What do you mean by "green banking"?

7) n¶m©daU (g§ajU) A{Y{Z¶‘,1986 H$mo {H$VZo Aܶm¶m| d YmamAm| ‘| {d^m{OV {H$¶m J¶m h¡? [1]
Environmental (Protection) Act, 1986 is divided into how many chapters and
sections?

8) ‘mopÝQ´>¶b àmoQ>moH$mob H$m ‘w»¶ CÔoí¶ ³¶m h¡?$ [1]
What is main objective of Montreal Protocol?

9) OrZmo~m¶mo{Q>³g ³¶m h¢? [1]
What are xenobiotics?

10) O¡{dH$ CnMmarH$aU H$mo n[a^m{fV H$s{O¶o& [1]
Define bioremediation.

SS–61–EVS 1336 [ Turn Over

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11) ‘{bZ ~pñV¶m± ³¶m hmoVr h¡? [1]
What are slums?

12) EopßnH$mo Am§XmobZ ³¶m h¢? [1]
What is Appiko movement?

13) ^yH$ån CËn{Îm H$m H$moB© EH$ H$maU {b{I¶o& [1]
Write any one cause of origin of earthquake.

IÊS> - ~
SECTION - B

14) dm¶w‘ÊS>b H$s g§aMZm Ho$ {d{^Þ ñVam| H$m g§{já dU©Z H$s{O¶o& [2]
Describe structure of various layers of atmosphere in brief.

15) h[aV J¥h à^md H$mo g‘PmB¶o& [2]
Explain green house effect.

16) ^maVr¶ ‘mZH$ ã¶yamo Ho$ H$m¶© {b{I¶o& [2]
Write functions of the Bureau of Indian Standards.

17) ñdÀN> {dH$mg {H«$¶m{d{Y Ho$ CÔoí¶ ³¶m h¡? [2]
What are the objectives of clean development mechanism?

18) dZ (g§ajU) A{Y{Z¶‘, 1980 Ho$ H$moB© Xmo CÔoí¶ ~VmB¶o& [2]
Give any two objectives of Forest (Conservation) Act, 1980.

SS–61–EVS 1336

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19) ³¶moQ>mo àmoQ>moH$mob na g§{já {Q>ßnUr {b{I¶o& [2]
Write short note on Kyoto Protocol.

20) Or.E‘.Amo. Ho$ Cn¶moJ go n¶m©daU Ho$ {bE ³¶m bm^ h¡? [2]
What are the advantages of use of G.M.O.s for environment?

21) d‘© H$mpñQ>¨½g Ho$ Xmo Cn¶moJ {b{I¶o& [2]
Write two uses of worm castings.

22) A) ßbmpÁ‘S> ³¶m h¡? [1+1=2]
~) nr.gr.~r. H$m nyam Zm‘ ³¶m h¡?
a) What are Plasmids?
b) What is full name of P.C.B.?

23) ^y{‘ Ho$ ~§Oa hmoZo Ho$ à‘wI H$maU ³¶m h¢? [2]
What are the main causes for formation of barren land?

24) ~m‹T> > {Z¶§ÌU Ho$ Cnm¶m| H$mo g§jon ‘| {b{I¶o& [2]
Write measures of flood control in brief.

IÊS> - g
SECTION - C

25) A) nmXn ßbdH$ ãby‘ {H$go H$hm OmVm h¡? [1+1+1=3]
~) O¡{dH$ Am°³grOZ ‘m±J go ³¶m VmËn¶© h¡?
g) Ob O{ZV amoJm| Ho$ CXmhaU Xr{O¶o&
a) What are phytoplankton blooms?
b) What do you understand by biological oxygen demand?
c) Give examples of water born diseases.

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26) VrZ R's g§H$ënZm H$mo g‘PmB¶o& [3]
Explain three R's concept.

27) {ZåZ{b{IV H$mo g‘PmB¶o- [1+1+1=3]
A) dmVZ
~) ñH§$XZ d CU©Z
g) AdgmXZ d {Zñ¶§XZ

Explain the followings
a) Aeration
b) Coagulation and Flocculation
c) Sedimentation and Filtration

IÊS> - X
SECTION - D

28) A) O¡d g§Ho$VH$ ³¶m hmoVo h¢? [2+2=4]
~) O¡d AmdY©Z H$mo g‘PmB¶o&
AWdm
Ob àXÿfU Ho$ ómoV d à^mdm§o H$mo {dñVma go g‘PmB¶o& [2+2=4]
a) What are bioindicators?
b) Explain biomagnification.
OR
Explain in detail about the source and effects of water pollution?

29) Ob (àXÿfU {ZdmaU VWm {Z¶§ÌU) A{Y{Z¶‘, 1974 H$s ‘w»¶ {deofVmE± {b{I¶o [4]
AWdm
n¶m©daU H$mZyZm| H$mo bmJy H$aZo ‘| AmZo dmbr ~mYmAm§o H$m dU©Z H$s{O¶o& [4]
Write main features of water (Prevention and control of pollution) Act,. 1974.
OR
Describe issues involved in enforcement of environmental legislations.

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30) amOñWmZ ‘§o dfm© Ob g§ajU H$s naånamJV {d{Y¶m| H$mo g‘PmB¶o& [4]
AWdm
{MnH$mo Am§XmobZ Ho$ B{Vhmg, ñdê$n, CÔoí¶m| H$m¶© e¡br Ed§ à^mdm| na {dñVma go boI {b{I¶o& [4]
Explain traditional methods of rain water conservation in Rajasthan.
OR
Write a detail essay on history, form, objectives, working and effects of Chipko
movement.

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SS–61–EVS 1336

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